Purr, PURR, PURR
The Big Bang Theory Season 2, Episode 21
Purr, PURR, PURR
The Big Bang Theory Season 1, Episode 11
Purr, PURR, PURR
The Big Bang Theory Season 4, Episode 2
Purr, PURR, PURR
The Big Bang Theory Season 1, Episode 11
♪ Purr, PURR, PURR
The Big Bang Theory Season 12, Episode 19